549694496887 has 2 divisors, whose sum is σ = 549694496888. Its totient is φ = 549694496886.

The previous prime is 549694496881. The next prime is 549694496927. The reversal of 549694496887 is 788694496945.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 549694496887 - 2¹⁵ = 549694464119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (549694496881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274847248443 + 274847248444.

It is an arithmetic number, because the mean of its divisors is an integer number (274847248444).

Almost surely, 2^549694496887 is an apocalyptic number.

549694496887 is a deficient number, since it is larger than the sum of its proper divisors (1).

549694496887 is an equidigital number, since it uses as much as digits as its factorization.

549694496887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3762339840, while the sum is 79.

The spelling of 549694496887 in words is "five hundred forty-nine billion, six hundred ninety-four million, four hundred ninety-six thousand, eight hundred eighty-seven".